Pajek / PajekXXL / Pajek3XL

Analysis and visualization of very large networks

Pajek

Recommended on FDM

Ver.

32 bit

64 bit

Jan 1,
2026

6.02

Web Start

Install Shield
Install-Zip
Portable

Web Start

Install Shield
Install-Zip
Portable

2018

Pajek Book Edition 3

Datasets

Exploratory Social Network Analysis with Pajek: Revised and Expanded Edition for Software Update. Third Edition.

Exploratory Social Network Analysis with Pajek - in Japanese.

Exploratory Social Network Analysis with Pajek - in Chinese.

What is new in Pajek 6.02?

Jan 1, 26	Pajek 6.02: More detailed instructions how to install and run Pajek on MacOS via Wine now available.
Jan 1, 26	Exporting matrices and dendrograms to SVG is now compatible with the latest inkscape (version 1.4.3).
Dec 3, 25	Problems with some icons which were not visible when running Pajek on MacOS (via Wine) fixed.
Apr 15, 25	Problems with restoring some child windows after windows were minimized fixed (windows disappeared after being minimized on some laptops).
Jan 9, 25	Pajek 6.01: Pajek adapted to and recompiled with the latest version of Delphi (12.2) and MtxVec (6.2).
Dec 3, 24	Move / Restore Coordinates after Moving added to Draw window: After moving vertex or cluster of vertices in Draw window, vertices are 'pulled back' to the positions before moving (useful for showing a vertex or cluster without spoiling the current layout).
Oct 18, 24	Exporting matrices and dendrograms to SVG and PDF updated according to the latest changes in Inkscape 1.4.
Jun 25, 24	Pajek 5.19: Option for changing colors of lines as gradient of colors of starting and terminal vertices included. Draw / Export / Options / SVG: Lines Color as Gradient of EndVertices. Examples.
Jan 13, 24	Exporting matrices and dendrograms to SVG and PDF addapted to Inkscape and GhostScript installed via PortableApps.com.
Dec 20, 23	Problem with fonts when exporting matrices and dendrograms to SVG and PDF fixed (problem occurs with the latest inkscape - inkscape 1.3.2). Font selected in Options / Font / Proportional Font is now used.
Dec 7, 23	Minor bug in macro execution fixed.
Sep 1, 23	Pajek 5.18: ...Complete history since November 15, 1996...

Some hints on Pajek

Start with the latest version of Pajek

   Changes in main menu structure from Pajek book edition (2.05) to the latest version of Pajek
   Start with Pajek, Pajek NET format, Test Datasets, More Datasets
   Course on Social Network Analysis with Pajek, supporting programs

Running Pajek on MAC and Linux

  Running Pajek on MAC, Addition1, Addition2
  Running Pajek on Linux
  Running Pajek on Linux64

Info on Pajek / Introduction to Pajek in different languages

   English: by Andrej Mrvar and Vladimir Batagelj
   Turkish: Pajek manual translated by Hasan Güçlü
   Russian: Videos (by Daria Matseva)
   Italian: by Fernanda Strozzi
   Persian: by Aliakbar Akbaritabar
   Greek (by Dimitrios Rousis): Presentation, Manual
   German:
   1. Videos (by Michael Henninger): 1, 2, 3
   2. by Vladimir Batagelj and Andrej Mrvar
   French:
   1. by Marion Maisonobe
   2. by Pierre Mercklé
   Spanish:
   1. by Universidad Nacional del Sur (Argentina)
   2. by Alejandro A. Ruiz León and Nina Ines Jung
   Portuguese:
   1. Videos (by Rafael Barbastefano): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
   2. by Ivette Luna
   3. by Andre M. Sarmento
   Chinese:
   1. Videos: 1.1, 1.2, 2.1, 2.2, 3, 4.1, 4.2, 5.1, 5.2, 6.1, 6.2, 6.3.
   2. by Feng Lin
   Japanese:
   1. by Japan Advanced Institute of Science and Technology
   2. by Yuki Yasuda and Takahisa Wakabayashi
   Polish:
   1. by Dominik Kopaczek
   2. by Dominik Batorski
   3. laboratorium-pajek-1
   4. laboratorium-pajek-2
   Lithuanian: by Gintarė Tautkevičiėnė
   Slovene:
   Pajek manual (by Andrej Mrvar)
   Course on Social Network Analysis with Pajek (by Andrej Mrvar)
   Pajek - 20 years (by Andrej Mrvar)

PajekXXL and Pajek3XL: About, Example 1, Example 2

Community Detection in Pajek and PajekXXL

   Detecting communities in Pajek and Pajek XXL
   Visualizing communities in Pajek
   Comparing Louvain method and VOS Clustering
   Example of visualizing communities in collaboration network (provided by James Moody)

Signed Networks in Pajek

Papers, visualizations, animations, instructions...

Analysis of Genealogies with Pajek

Papers, presentations, fragments, macros...

Analysis of Citation Networks

Main path analysis (Wikipedia)
How to use Pajek to find main path (Video)

Using Unicode, LOG and MCR files

Using Unicode in Pajek
Macros and session (LOG) files

SVG, EPS and VOS Visualizations

   Exporting Visualizations to VOSviewer
   Example of using Tooltips in SVG export
   Bezier curves as default shapes of lines in Pajek
   Animations of the Correlates of War data
   Some visualizations with symbols
   Drawing edges and arcs transparently in Pajek
   Drawing vertices transparently in Pajek
   Solving the problem of unwanted visibility of lines behind transparent vertices in Pajek
   house, man, and woman as additional shapes
   Changing colors of lines as gradient of colors of starting and terminal vertices

Supporting programs

   PajekToSvgAnim (by Darko Brvar): Zip (version 1.10.9.7, December 18, 2018), TestData, Manual
   txt2Pajek (by Juergen Pfeffer): Create Pajek files from text files (version 3)
   R functions (by Jonathan H. Morgan): Read and write Pajek files without calling another networks package
   NeuroData's Graph Database Online converter among several network formats (including Pajek)
   Web Crawlers with export to Pajek: SocSciBot, UrlNet
   socilab (by Craig Tutterow): Visualize your LinkedIn Network and save it as Pajek NET file
   Visual History for Chrome (by Samer Kurdi): Chrome extension that presents URLs visually,
   as an interactive chart and saves it as Pajek NET file. Download

Pajek

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Questions regarding Pajek